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Masaru Yamamoto Last modified date:2019.12.24

Graduate School

Academic Degree
Field of Specialization
Outline Activities
(1)Marine meteorology over the East Asian marginal seas
(2)Dynamics of planetary middle atmosphere
I supervise students studying the above topics.
Research Interests
  • Marine meteorology in marginal sea areas of East Asia
    keyword : atmospheric dynamics
    2005.09Parameterization of microphysical processes for aerosol transport model..
  • Dynamics of planetary middle atmosphere
    keyword : Planetary science
    1993.04Atmospheric dynamics of Earth and Venus..
Academic Activities
1. Masaru Yamamoto, Masaaki Takahashi, Effects of polar indirect circulation on superrotation and multiple equilibrium in long-term AGCM experiments with an idealized Venus-like forcing: sensitivity to horizontal resolution and initial condition, Journal of Geophysical Research - Planets, 123, 708-728, 2018.03.
2. Masaru Yamamoto, Masaaki Takahashi, General circulation driven by baroclinic forcing due to cloud-layer heating: significance of planetary rotation and polar eddy heat transport, Journal of Geophysical Research - Planets, 121, 558-573, 2016.04.
3. Masaru Yamamoto, Effects of a semi-enclosed ocean on extratropical cyclogenesis: the dynamical processes around the Japan Sea on 23-25 January 2008, Journal of Geophysical Research, DOI:10.1002/jgrd.50802, 118, pp.10391-10404, 2013.08.
4. Yamamoto, M. and M. Takahashi, Venusian middle-atmospheric dynamics in the presence of a strong planetary-scale 5.5-day wave, Icarus , doi:10.1016/j.icarus.2011.06.017, 217, 702-713, 2012.01.
5. Yamamoto, M. T. Ohigashi, K. Tsuboki and N. Hirose, Cloud-resolving simulation of heavy snowfalls in Japan for late December 2005: application of ocean data assimilation to a snow disaster case, Natural Hazards and Earth System Sciences, 11, 2555-2565, 2011.09.
6. Yamamoto, M. and N. Hirose, Possible modification of atmospheric circulation over the northwestern Pacific induced by a small semi-enclosed ocean, Geophysical Research Letters, doi:10.1029/2010GL046214, 38, L03804, 2011.02.
7. Yamamoto, M., Microscale simulations of Venus’ convective adjustment and mixing near the surface: thermal and material transport , Icarus , 211, 993-1006, 2011.01.
8. Yamamoto, M. and M. Takahashi, Dynamical effects of solar heating below the cloud layer in a Venus-like atmosphere, Journal of Geophysical Research -Planets, doi:10.1029/2009JE003381, 114, E12004, 2009.12.
9. Yamamoto, M. and N. Hirose, Regional atmospheric simulation of monthly precipitation using high-resolution SST obtained from an ocean assimilation model: Application to the wintertime Japan Sea, Monthly Weather Review, 137, 7, 2164–2174, 2009.07.
10. Yamamoto, M and M. Takahashi, Prograde and retrograde atmospheric rotation of cloud-covered terrestrial planets: Significance of astronomical parameters in the middle atmosphere, Astronomy and Astrophysics, Vol.490, L11-L14, 2008.11.
11. Yamamoto, M. and M. Takahashi, A parametric study of atmospheric superrotation on Venus-like planets: effects of oblique angle of planetary rotation axis, Geophysical Research Letters, Vol. 34, L16202, doi:10.1029/2007GL030220, 2007.08.
12. Yamamoto, M. and N. Hirose, Impact of SST reanalyzed using OGCM on weather simulation: A case of a developing cyclone in the Japan-Sea area, Geophys. Res. Lett., Vol. 34, L05808, doi:10.1029/2006GL028386, 2007.03.
13. Yamamoto, M. and M. Takahashi, Superrotation Maintained by Meridional Circulation and Waves in a Venus-Like AGCM, J. Atmos. Sci., Vol.63, No.12, pp.3296-3314, 2006.12.
14. Yamamoto, M. and M. Takahashi, An aerosol transport model based on a two-moment microphysical parameterization in the Venus middle atmosphere: Model description and preliminary experiments, J. Geophy. Res., Vol.111, E08002, doi:10.1029/2006JE002688, 2006.08.
15. Yamamoto, M. and M. Takahashi, Dynamics of Venus' superrotation: the eddy momentum transport processes newly found in a GCM, Geophys. Res. Lett., Vol.31, doi:10.1029/2004GL019518, 2004.05.
16. Yamamoto, M. and M. Takahashi, Superrotation and equatorial waves in a T21 Venus-like AGCM, Geophys. Res. Lett., Vol.30, doi:10.1029/2003GL016924, 2003.05.
17. Yamamoto, M. and M. Takahashi, The Fully Developed Superrotation Simulated by a General Circulation Model of a Venus-like Atmosphere, J. Atmos. Sci., Vol.60, pp.561-574, 2003.02.
18. Yamamoto, M., Blocky Markings and Planetary-Scale Waves in the Equatorial Cloud Layer of Venus, J. Atmos. Sci., Vol.58, pp.365-375, 2001.02.
19. Yamamoto, M. and H. Tanaka, The Venusian Y-shaped Cloud Pattern Based on an Aerosol-Transport Model, J. Atmos. Sci., Vol.55, pp.1400-1416, 1998.04.
20. Yamamoto, M. and H. Tanaka, Formation and Maintenance of the 4-Day Circulation in the Venus Middle Atmosphere, J. Atmos. Sci., Vol. 54, pp.1472-1489, 1997.06.